#define _CRT_SECURE_NO_WARNINGS 1

#include<stdio.h>
int isprime(int year)
{
    if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0)
        return 1;
    else
        return 0;;
}
int days(int year, int month)
{
    int arr[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 };
    if (isprime(year))
        arr[1] = 29;
    return arr[month - 1];
}
int main()
{
    int year = 0;
    int month = 0;
    while (scanf("%d%d", &year, &month) != EOF)
    {
        printf("%d\n", days(year, month));
    }

    return 0;
}